What is the square footage of this mansion in Duluth, Minnesota, operated by the University of Minnestoa Duluth as a historic house museum, indelibly linked with the Congdon name?
27,000
-1
Section::::Abstract.
Chester Adgate Congdon
4187405
-1
Section::::Abstract.
Chester Adgate Congdon
4187405
-1
Section::::Abstract.
Glensheen Historic Estate
4071023